翻译:左乘环 同义词1)left multiplication ring,左乘环2)premultiplication[pri:,mʌltipli'keiʃən],左乘3)premultiply,前乘;自左乘4)left-multiply principle,左乘原则5)Left (right) multipliers,左(右)乘子6)Rule of left multiplication,左乘规则